Search results for " Chemoselectivity"

showing 2 items of 2 documents

Green Oxidation of Alcohols to Carbonyl Compounds by Heterogeneous Photocatalysis

2010

TitaniumAldehydesChemistryGeneral Chemical EngineeringKetonesHeterogeneous catalysisPhotochemistryPhotochemical ProcessesSilicon DioxideCatalysisGeneral EnergyAlcohol oxidationAlcoholsAlcohols Chemoselectivity Heterogeneous Catalysis Oxidation PhotocatalysisPhotocatalysisEnvironmental ChemistryOrganic chemistryGeneral Materials ScienceChemoselectivityOxidation-ReductionEnvironmental Restoration and Remediation
researchProduct

Halogen‐Imparted Reactivity in Lithium Carbenoid Mediated Homologations of Imine Surrogates: Direct Assembly of bis‐Trifluoromethyl‐β‐Diketiminates a…

2020

The selective formal insertion (homologation) of a carbon unit bridging the two trifluoroacetamidoyl chlorides (TFAICs) units is reported. The tactic is levered on a highly chemoselective homologation-metalation-acyl nucleophilic substitution sequence which precisely enables to assemble novel trifluoromethylated β-diketiminates within a single synthetic operation. Unlike previous homologations conducted with LiCH2Cl furnishing aziridines, herein we exploit the unique capability of iodomethyllithium to act contemporaneously as a C1 source (homologating effect) and metalating agent. The mechanistic rationale grounded on experimental evidences supports the hypothesized proposal and, the struct…

Trifluoromethyl010405 organic chemistryIminemetalationGeneral Chemistrycarbenoids; chemoselectivity; homologation; imines; metalation010402 general chemistry01 natural sciencesCombinatorial chemistryCatalysis0104 chemical sciencesCatalysisβ diketiminatechemistry.chemical_compoundDual rolechemistrychemoselectivityiminesHalogenNucleophilic substitutionhomologationcarbenoidsCarbenoidAngewandte Chemie International Edition
researchProduct